No they are commercially sold under license from the BBC from the original moulds. The company that does them is
This Planet EarthThe really cool feature is the optional remote control that installs a digital voice synethesis with six pre-set Dalek expressions. Great fun to leave people admiring it and then from another room in the flat trigger it so that it suddenly flashes its lights and bellows "Move. Or you will be exterminated".

Not cheap though and when I ordered it a few years ago there was like a six month waiting list.
I bought it to get over the childhood trauma of not winning one when I entered a competition on the back of a Sugar Puffs packet when I was about ten (that's nearly 40 years ago - yikes!)
If I had the money (and the room - my flat is full of display cases of Sideshow Weta models from Lord of the Rings so no space!) I'd be tempted to get the mannequin and cyberman suit that the same company sells, to go with it.
Alas the roof is too low for the full-size tardis 'wardrobe' that they also sell.